Equalizing gear for locomotives



March 17, 1925.

Y J. s. KEEN EQUALIZING GEAR FOR LOCOMOTIVES Fiiea Oct. 25 1924 Patented Mar. 17, 1925.

UNITED isTATEs'f PATENT oF-FICE- JOHN s. KEEN, or PHILADELPHIA, PENNSYLVANIA, AssIGNonTo THE BALDWIN LOCOMOTIVE WORKS, or PHILADEL]? PENNSYLVANIA.

Application filed October To all whom it may concern:

Be it known that I, JOHN S. KEEN, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Equalizing, Gears of which the "following.

allow clearancefor parts above the top of the main frame of the locomotive.

In the accompanying drawings :Fig. 1

is a View of sufiicient, of a locomotive to illustrate my invention;Fig. 2 is a planview of the mechanism shown in Fig. 1; Fig. 3 1s a transverse sectional view. on the hue 33, Fig. 1; Fig. 4 1s a sectlonal view on the-line 4-4, Fig. 1; Fig. 5 is asectional viewon the line 5-5, Fig; 1; and

Figs. 6 and 7 are views illustrating'modifications of the invention. a

V The frame 1 of a locomotive has pedestals 2 between which is located the journal box 3 for the axle 4, on which are the wheels 5. 'Mounted on the journal box, or formed integral therewith, is a spring seat 6, which is shaped to receive the central band 8 of each of the two semi-elliptical springs 7.

These springs extend parallel with theside frame 1 of the locomotive. One'spring is located on the outside of the'frame and the 1 and 3, that the springs extend only a short distance above the top of the frame 1 to allow sufficient clearance for overhead parts. One end of each spring is connected by a link9 -to an equalizing lever 10,.in the present instance, while the other end of each spring is connected by a link 11 to a cross head 12, which is pivoted, at 13, to a bracket 14 that is secured to the under side of the frame 1, as shown clearly in Figs. 1 and 4:. i

By pivoting the cross bar in the manner shown, any difference in the flexion of the two springs is equalized bythis construction. The particular connectionshown other spring is located on the inside of the frame, as shown clearly in Flgs. 2 and 3. It, will be noticed, on referring to Figs.

HIA, rnNNsYLvANIA, A'oonroRATIoN or EQU ALIZING GEAR FOR LOCOMOTIVES.

25, 1924. Serial No. 745,897.

maybe varied, depending upon the char- I actor of the equalizing gear.

I In some instances, instead of the pivoted cross bar, shown in Fig. 4, thelmlink 11.1naybe'attached to a transverse pin 15, which is mounted in a bracket 14 that is secured to the frame 1, as'illustrated in Fig.6. In Fig- 7, another modification is illustrated in which the bearing 6. for the springs .may be mounted on a'curved' por;

tion 6" of the box to equalize the two springs.

'By the construction hereinbefore de-' scribed, it will be seen that the entire equalizing gear is materially reduced in'height,

consequently, suflicient space is provided for the parts of the locomotive that extend over the frame without reducing the effectiveness of the equalizing mechanism.

I claim: 1. The. combination in an equalizing gear for locomotives, of a side frame; a box mounted in the side frame; an axle in the box; two springs, one located on one side of the frame and the other located on the opposite side thereof, both springs resting on the box; and means connecting the springs tothe frame.

2. The combinationin anequalizing gear for locomotives, of a side frame; a box mounted in the frame; "an axle in the box, said box having a spring seat; two springs mounted on the seat of the box, one spring being mounted von one side of' the vframe and the other spring beingmounted' on the opposite sidethereof; an equalizing leverattached to one end of both springsaahd links connecting the opposite'ends of the springs with the frame. I

3. The combination in anequalizing gear for locomotives, of aside frame; a box located in the frame; an axle mounted in the box, "said box having springseats, one on'each side of the frame; semi-elliptical springs resting on the seats, one spring being on one side of the frame and the other spring being on the opposite side the springs to the frame; and means for equalizing the tension of the two springs.

4. The combination in an equalizing gear for locomotives, of a side frame; a box mounted invthe frame; anva i leploe ated in the hex, said box having two spring seats, one at each side of the frame; two semiellipticel springsrestingon the seats, one

spring being located on one side of the frame and the other spring being located on the opposite side thereof; an equalizing lever connecting one end of both springs; a bearing on thefram e; a cross lreed pivoted to the bearing; and; links eonneeting the arms of the cross head to the springs.

JOHN Us. KEEN 

